Columbia leads the industry by prominently displaying an Underwriters Laboratories (UL) label on every product we make: cabs, doors, entrances and wireways.
Columbia also offers the industry's only entrance assembly that is tested and certified by Warnock-Hersey Int. Inc. for compliance with NFPA 105 for smoke penetration.
Sunday, April 15, 2018
It is often said about life that when one door closes, another opens. And so it goes with elevator door operators: as decades-old methodologies fade into obsolescence, today’s cutting-edge technologies – such as the “Internet of Things” – are opening new views into the design, installation, functionality and maintenance of the equipment that governs the movement of elevator doors.